Cryptographer Team Lead

Department: Trezor

Location: Prague

Employment Type: FullTime

At Trezor, security is the foundation of everything we build. As the inventor of the first hardware wallet, we have helped shape security standards widely used across the crypto space, including Recovery seeds, Passphrases, and Shamir Backup. Founded in 2013 and still 100% self-owned, we continue to build open-source products that give people more control over their digital assets.

As a Cryptographer Team Lead, you’ll bring strong cryptographic expertise into real product development and help guide this domain across Trezor. In this role, you’ll work on practical cryptographic challenges, contribute to security-related decisions, and lead a small team of specialists. This is a great opportunity for someone who enjoys turning complex concepts into practical solutions and wants to have a visible impact on products used by millions. If that sounds like your kind of challenge, read on.

👉 What You'll Do

• Own and drive cryptography initiatives across the company

• Lead a team of three cryptography engineers, combining technical leadership with people management

• Provide direction on complex cryptographic questions and decisions

• Design, specify, and implement new cryptographic standards, such as BIPs and SLIPs

• Maintain and further develop trezor-crypto, our cryptographic algorithms library

• Review and assess vulnerability reports related to Trezor firmware

💪 About You

• 5+ years of experience in cryptography

• Ability to take complex cryptographic concepts, turn them into practical solutions, and explain them to less experienced colleagues

• Understanding of elliptic curve cryptography and modern cryptanalytic methods

• Solid command of C and Python

• Knowledge of cryptography used in Bitcoin and other cryptocurrencies is an advantage

• Understanding of protections against side-channel and fault injection attacks

• Familiarity with Git

• Familiarity with Rust is a plus

🤝 What We Offer

• A unique opportunity to be part of a pioneering company in the crypto industry

• Open-source codebase with 1,000+ GitHub stars

• Option to get paid in bitcoin

• Friendly working environment and home office flexibility

• Budget for professional development (training programs, crypto conferences, courses, and workshops of your choice)

• Renovated offices (including a gym, foosball table, billiards, PlayStation, and a 3D printer)

• Additional benefits such as a MultiSport card, company mobile phone tariff, snacks, yoga and fitness classes, and more

• Free on-site parking

👋 Interested? We’d love to hear from you. Send us your CV and a few words about yourself, and we’ll get back to you as soon as we’ve reviewed your application, most likely within a week.